12 ! john ordered two kinds of pizza for a party: sausage pizzas and veggie pizzas. he ordered three pizzas of each kind. the pizzas cost a total of $99. if the cost of each veggie pizza is $18, what is the cost of a sausage pizza?

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Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

Could somebody me with this radical simplification?